Mucosal eyeliner I bought with my own money

My eye area is sensitive, so whenever I try to fill in my waterline, tears well up and it doesn't draw well. If I try to fill in the waterline with a brush-pen type, it rubs off quickly with tears and doesn't provide even color, so I've been using Etude House's Proof 10 Gel Pencil Liner. This product applies incredibly smoothly and has vivid color payoff, so I use it frequently for my waterline. It is shade #1, a vivid black, so filling in the waterline makes my eyes look very defined, and since it is waterproof, it doesn't smudge easily.